Open Source • Apache 2.0 • First of its kind

The AI operating system for General Contractors.

Fourteen professional Claude skills covering Florida permitting, building code, lien law, OSHA safety, NEC electrical, structural engineering, estimating, and project management. Built by a working GC, in the open.

Get the Suite — Free See it in action
14
Professional skills
7,000+
Lines of vetted content
0
Direct competitors
$0
Community tier
Why this exists

Every GC runs the same losing math.

Contractors spend 10 to 25 hours per project on permit corrections, code lookups, and paperwork that doesn't build anything. The 2025 AGC survey says 61% of contractors want AI. 34% are still in pilot. This is why.

🎯

Specific, not generic

Every section cites real articles — NEC 220.54, FBC 2902.1, §713.06, 29 CFR 1926.1153. No "here are some general thoughts on construction." Written for the GC who already knows the field.

🔗

Portable, not locked in

Apache 2.0 open source. Runs anywhere SKILL.md runs — Claude Code, Cowork, Agent SDK, any compatible platform. No vendor lock-in. Your knowledge stays yours.

⚡

Action-ready, not draft-ready

Correction Response Matrix. Confined Space Entry Permit. RFI format. Non-Conformance Notice. G702/G703 structure. Copy, fill, send. Not "use this as a starting point."

🏗️

Real operational knowledge

Built by Claudio Manhães at Haez Design & Build (CGC1531902) in Palm Beach County — not by a prompt engineer who googled "construction." Every skill reflects what a practicing GC does daily.

The suite

Fourteen skills. One system.

Each skill is self-contained and loads independently. Skills cross-reference each other — when one skill reaches the edge of its scope, it hands off to the right sibling. Florida is the reference implementation; the framework scales.

Core
fl-permitting
FL permits, NOC, resubmittals, pre-app meetings, electronic submittal, portal navigation, permit fee schedules, phased permits, differing site condition protocol, 7 South FL jurisdictions.
Core
fl-building-code
FBC 7th Ed. — occupancy, construction types, egress, HVHZ, fire, energy, accessibility, interior finish ratings, plumbing fixtures, roof assemblies, CCCL coastal, high-rise §403.
Core
fl-construction-law
Ch. 713 lien law, NTO/NOC/COL, AIA A101/A201/G702/G703, §715.12 Prompt Payment Act, Statute of Repose, constructive change doctrine, no-damages-for-delay, DBPR.
Core
gc-project-management
RFI, submittals, CPM, Last Planner System (pull planning, PPC), BIM coordination (Navisworks/ACC clash detection), Risk Register, procurement log, CO separation by origin, Lessons Learned.
Core
construction-estimating
BNI + South FL regional factor (verified 2024), RS Means CCI, parametric benchmarks ($/SF + $/key + $/bed + $/parking), labor burden, VE log, exclusions list, live supplier pricing.
Core
construction-osha
29 CFR 1926, fall protection, excavation, scaffolding, Silica Standard 1926.1153 Table 1, Confined Space with entry permit template, Multi-Employer Citation Policy, HazCom.
Core
engineering-assistant
Structural drawing reading, load paths, FL foundations, concrete, steel, CMU, wood FL wind, post-tensioned slabs (life-safety protocol), waterproofing systems, Simpson wind uplift, precast, soil improvement.
Core
nec-electrical-code
NEC NFPA 70, load calcs, ampacity, conduit fill, GFCI/AFCI, grounding, panels, temp wiring, Solar PV Art. 690 + FPL interconnection, EV charging Art. 625, SCCR, Arc Flash NFPA 70E.
Core
national-codes-reference
IBC, NFPA 13/72/101, NEC, ADA federal, ASCE 7, ACI 318, AISC 360, NFPA 96 commercial kitchen with 13-coord, ASHRAE 62.1 ventilation, ASTM standards.
Core
aec-drawing-production
DXF generation from scope, PDF-to-CAD extraction, ArchiCAD 29 workflows, Revit/Dynamo scripts, demolition plan production to FL permit standard. 3 bundled Python scripts.
Core
real-estate-development
Feasibility study, pro forma, cap rate/IRR/DSCR, zoning analysis, entitlement (PUD/variance/rezoning), FL overlays (CCCL, flood, 40-yr recert, Live Local), BTR/SFR, GC-becoming-developer playbook.
Scale
multi-state-framework
Licensing by state, lien law comparison (TX/GA/NC/NY/CA), Davis-Bacon, right-to-work, expansion checklist for FL contractors going multi-state.
Scale
ibc-international
IBC as global reference, Eurocode comparison, Middle East (Dubai/Saudi/Qatar), Canada NBC, Australia NCC, FIDIC vs. AIA contracts, imperial/metric conversion.
Bridge
brazil-contractors-usa
Brazilian construction professionals operating in the US. CREA/CAU → PE/RA, NR-18 → OSHA 1926, ABNT NBR → IBC/ACI/AISC, alvará → permit, ITIN/EIN/E-2 visa.
Case Study #01

Garage conversion, Wellington FL — real project, real savings.

A single-family garage conversion in Palm Beach County. Two correction cycles: one electrical (NEC 220.54 dryer load), one structural (Engineer of Record certification for CMU infill walls). Here's what the suite did.

Real artifact Wellington, FL Haez Design & Build (CGC1531902)

NEC 220.54 correction response

Plan reviewer wrote: "Please revise load calculation. Dryer requires 5,000 VA minimum per NEC 220.54." Traditional GC workflow: 2–4 hours of research, recalculation, letter drafting. With nec-electrical-code + fl-permitting skills loaded: identify article, pull requirement, recalculate service load, draft Correction Response Matrix — professional tone, precise citation, secondary impacts flagged. Submitted same day. Approved first pass.

2–4 hrs
Traditional
10–25 min
With the suite
90%
Time compression
1st pass
Reviewer approval
Read full case study →
Simple pricing

Free for the community. Pro for the firm.

The core suite is permanently free and open source. We fund continued development through a Pro subscription that adds ongoing code updates, premium skills, and a private community. Enterprise for larger firms with custom needs.

Community
$0 forever

Get the full 14-skill suite, install anywhere, modify freely.

  • All 14 skills, Apache 2.0
  • Self-hosted / self-installed
  • GitHub issue tracker
  • Community Discord
  • MIT-style derivative works allowed
Download on GitHub
Pro
$149 / month per firm

Unlimited users. Ongoing updates. Premium skills. Private support. Launching soon.

  • Everything in Community
  • Quarterly content updates (codes change)
  • Premium skills (real-estate-dev+, HOA/Condo Ch. 718, 40-year recert)
  • Haez-branded document templates
  • Private Slack + office hours
  • Priority correction requests
Join Pro Waitlist
Enterprise
Custom

For firms 50+ staff. White-label, custom state packs, SLAs, consulting.

  • Everything in Pro
  • White-label / private-branded
  • Consulting from Haez — 4h/month included
  • Custom state-specific packs on request
  • Priority security & uptime SLA
  • Dedicated account manager
Contact Sales
Start in 2 minutes

Install the suite.

Three ways to get started. Pick the one that matches how you already work.

⬇

Download on GitHub

Clone the repo. Copy the 14 skill folders into ~/.claude/skills/. Done. Apache 2.0.

github.com/jobsiteai →

📦

Install as Claude plugin

Upcoming release — bundled .plugin file for Cowork and Claude Code. One-click install.

Coming Q2 2026

🛠

Enterprise deployment

We help your firm install, customize for your state/jurisdictions, and train your team.

Book a call →